Burner.



N@. 744,s0o. PATENTED NOV. 24, 1903 s. A. ROSBNTHAL.

BURNER.

APPLICATION FILED JAN. 10, 1902- N0 MODEL.

"THE Nbnms warms 110., PHoTo-u'mu WASHINGTON, o. c.

UNITED STATES Patented November 24, 1903.

SIGMUND ADOLF ROSENTHAL, OF LONDON, ENGLAND.

BURNER.

SPECIFICATION forming part of Letters Patent N 0. 744,800, dated November 24, 1903. Application filed January 10, 1902. Serial No. 89,205. (No model.)

To aZZ whom it may concern.-

Be it known that I, SIG-MUND Anomr RosnN- THAL, a citizen of Great Britain, residing at 37WValbrook, in the city of London, England, have invented certain new and useful Improvements in and Relating to Burners, of

which the following is a specification.

This invention relates to burners applicable for gas and Vapor, and has for its object to provide a burner particularly for the purpose of a heating-stove, in which an intense heat may be produced by the perfect combustion of an intimate mixture of the gas or vapor and air.

According to the invention the mixingchamber is formed of two hollow truncated cones having their apexes opposed so as to form an integral casin g with a bore gradually restricted toward the middle, and at the top of the upper conical part of the casing to about one-third of its length an expansionchamber is formed by the insertion of a closed cone provided in the manner and substantially as hereinafter described.

The invention further consists in the features of construction hereinafter described as applied.

The invention is illustrated in the accompanying drawings, in which- Figure 1 is a sectional elevation of a stove provided according to the invention, While Fig. 2 is an elevation of a detail.

In carrying the invention into effectin the provision of a gasstove a mixing chamber is provided of two hollow truncated cones a at, having their apexes opposed and provided to form an integral casing having a bore gradually restricted toward the middle, the outwardly-fiaring extremities a and a thereby forming the top and bottom of the casing. The lower extremity a is secured to legs sufficiently high above the surface upon which the casing is made to stand as to permit of an adequate supply of air, or a ring 0 may be fitted within the cone M, to which ring 0 the legs I) may be'secured, the ring a being provided with suitable lateral apertures a, through which free passage of air is allowed.

Beneath the mixing-chamber a a, and preferably secured to the supporting-legs b, an inlet gas-pipe e is provided whose nozzle 6 projects upwardly and is disposed in such re base h opposing the base of the upper conical part a of the mixing-chamber and its apex c" upward. The closed cone 9 rests against the wall of the mixing-chamber an and closes it. The metallic gauze of the closed cone is in the base part h, provided of a mesh finer than that of the conical peripheral part i.

The top part f of the expansion-chamber is provided with a circular sheet of metallic gauze 70, preferably resting on the flange a of the cone and fastened in position by means of a ring n of angular section, which is held in position by means of bayonet-fastenings, the bayonet-slots being conveniently provided in the vertical flange of the ring 7?, and the pins upon the face a of the cone. Any other suitable means for securing the gauze in position may, however, be employed. The ring is provided with short arms so shaped that a metallic deflecting-plate m can be placed and firmly held at a suitable distance above the flame, thereby deflecting and distributing the flame equally and at the same height between the top gauze and the plate.

The deflecting-plate m is preferably made in the form of a tray or pan, whose upper surface is of larger circumference than its under face, and it may have its periphery provided with vertical ribs, the recess m of the plate being filled with a suitable material hav ing for its object to obstruct the upward passage of the heat-rays in a vertical direction. A suitable material for this purpose is a mixture of infusorial earth and plaster-of-paris in the proportion of about one-quarter of the former to three-quarters of the latter; but any suitable refractory or non-conducting material may be advantageously used for the purpose.

By the provision of a stove, as hereinbefore described, an intimate admixture of the air and gas or vapor is secured and perfect combustion in the flame.

What I claim as my invention, and desire to secure by Letters Patent, is-

1. In a gas-stove,.the combination of a mixing-tube gradually restricted in form toward the middle and flaring outwardly at its extremities, a gauze sheet at the top end thereof, 5

name to this specification in the presence of two subscribing Witnesses.

a closed cone of gauze inside and near the top of said tube, said parts forming an expansionchamber, and a gas-nozzle, substantially as I described. v

2. In a gas-stove, the combination of amixing-tube gradually restricted in form toward the middle and flaring outwardly at. its eX- tremities, a gauze sheet at the top end thereof, a closed cone of gauze inside and near the top of said tube, said parts forming an expansionchamber, a deflector-plate superposed upon the top of said mixingtu be, said deflectorplate being formed of a hollow disk and filled with refractory material, and a gas-nozzle,

substantially as described.

In testimony whereof I have signed my SIGMUND ADOLF ROSENTHAL.

Witnesses:

ABnRcRoMBIE CASTLE, G. F. WARREN. 

